removed unused, added comments.
removed unused, added comments.

vkolodrevskiy/spring-social-vkontakte,vkolodrevskiy/spring-social-vkontakte,Klaxon77/spring-social-vkontakte,Klaxon77/spring-social-vkontakte,disovi/spring-social-vkontakte,disovi/spring-social-vkontakte